BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 8, Problem 6A
Given that the C4 pathway gets around the problems of photorespiration, why don’t all plants use it?
a. It is a more recent process, and many plants have not had time to evolve this pathway.
b. It requires extra enzymes that many plants lack.
c. It requires special transport tissues that many plants lack.
d. It also has an energetic cost.
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Part A: Describe the role that stroma, thylakoids,granum, stroma lamellae, outer and inner membrane play in photosynthesis.
Part B: What two reactions occur during photosynthesis and the role that chlorophyll plays.
Which is NOT an evolutionary adaptation of plants to minimize the costs of photorespiration while also conserving water on hot days?
a.
Use more ATP to incorporate CO2 into organic compounds, which increases CO2 concentration in the cell.
b.
Confine the Calvin cycle to specific cells in order to prevent inefficient rubisco binding and net energy loss.
c.
Binding O2 to rubisco instead of CO2.
d.
Uptake CO2 only at night and use ATP to fix it into organic acid for later use during the light reactions, which prevents water loss during the day.
You want to kill weeds growing without killing the grass in your backyard. Use the information you gained in Chloroplast and Photosynthesis chapter and answer the following questions.
a) Explain what are you going to use to get rid of weeds only.
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Chapter 8 Solutions
BIOLOGY
Ch. 8.1 - Prob. 1LOCh. 8.1 - Prob. 2LOCh. 8.2 - Prob. 1LOCh. 8.2 - Differentiate between the light-dependent and...Ch. 8.3 - Discuss how pigments are important to...Ch. 8.3 - Prob. 2LOCh. 8.4 - Prob. 1LOCh. 8.4 - Prob. 2LOCh. 8.5 - Prob. 1LOCh. 8.5 - Prob. 2LO
Ch. 8.6 - Describe carbon fixation.Ch. 8.6 - Prob. 2LOCh. 8.7 - Prob. 1LOCh. 8.7 - Prob. 2LOCh. 8 - Prob. 1DACh. 8 - Prob. 2DACh. 8 - Prob. 3DACh. 8 - The light-dependent reactions of photosynthesis...Ch. 8 - Which region of a chloroplast is associated with...Ch. 8 - The colors of light that are most effective for...Ch. 8 - During noncyclic photosynthesis, photosystem I...Ch. 8 - How is a reaction center pigment in a photosystem...Ch. 8 - The ATP and NADPH from the light reactions are...Ch. 8 - The carbon fixation reaction converts a. inorganic...Ch. 8 - Prob. 8UCh. 8 - Prob. 1ACh. 8 - If you could measure pH within a chloroplast,...Ch. 8 - Prob. 3ACh. 8 - If the Calvin cycle runs through six turns a. all...Ch. 8 - Prob. 5ACh. 8 - Given that the C4 pathway gets around the problems...Ch. 8 - If the thylakoid membrane became leaky to ions,...Ch. 8 - The overall process of photosynthesis a. results...Ch. 8 - Compare and contrast the fixation of carbon in C3,...Ch. 8 - Diagram the relationship between the reactants and...Ch. 8 - Do plant cells need mitochondria? Explain your...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which statement correctly describes carbon fixation? a. the conversion of CO2 to an organic compound b. the use of RUBISCO to form 3-PGA c. the production of carbohydrate molecules from G3P d. the formation of RuBP from G3P molecules e. the use of ATP and NADPH to reduce CO2arrow_forwardWhat two products result from photosynthesis? a. water and carbon dioxide b. water and oxygen c. glucose and oxygen d. glucose and carbon dioxidearrow_forwardAs it relates to Photosynthesis: What would happen if all the plants died?arrow_forward
- Using the graph comparing photosynthetic rate and absorption of different wavelengths of light, what can be concluded? a) The photosynthesis rate at 550 nm is the highest b) Chlorophyll a absorbs wavelengths at both ends of the spectrum c) Chlorophyll b is associated with the greatest rate of photosynthesis. d) Carotenoids absorb the narrowest range of wavelengths of lightarrow_forwardPlants actively engaged in photosynthesis also evolve carbon dioxide. Explain.arrow_forwardWhich best describes cyclic photophosphorylation? (a) it uses two photosystems (b) it produces water as a waste product (c) it produces oxygen as a waste product (d) it utilizes a single photosystem (e) it uses substrate level phosphorylation to produce ATParrow_forward
- In which process is ATP produced in both photosynthesis and cellular respiration by ATP synthase, respectively? a. Krebs Cycle and Light-dependent reaction b. Light-dependent reaction and oxidative phosphorylation c. Glycolysis and Light-independent reaction d. Light-independent reaction and oxidative phosphorylationarrow_forwardGive typing answer with explanation and conclusion C4 and CAM photosynthesis evolved because _______________. Question options: A. They allow oxygen (O2) to be used to create sugar, in addition to CO2 B. Even though they require more ATP, they prevent Rubisco from binding to the wrong molecule C. They are more efficient in their production of ATP, so plants can grow faster, making them the preferred way to photosynthesize for all plantsarrow_forwardDid you find evidence that cellular respiration occurs in plants? Explain using your dataarrow_forward
- Explain how a high concentration of oxygen in leaves can be harmful to plants.arrow_forwardWhy do desert plants that live in very hot and dry conditions have stomata? a. To allow for transpiration b. To allow for gas exchange c. To allow for the release of excess heat d. Both a and b are correct.arrow_forwardWhich statement best explains the relationship between the amount of sunlight a plant receives and the flow of energy into and out of the plant system? A An increase in the amount of sunlight adds more energy to the system and increases the rate of photosynthesis. B An increase in the amount of sunlight removes energy from the system and decreases the rate of photosynthesis. C A decrease in the amount of sunlight removes energy from the system and increases the rate of photosynthesis. D A decrease in the amount of sunlight adds more energy to the system and decreases the rate of photosynthesis.arrow_forward
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